Dampened Hinge System for Appliance Door
Publication Date: 2009-Feb-12
The IP.com Prior Art Database
Disclosed is a dampened hinge system for an appliance door. This hinging system incorporates an integral damper to give the door controlled, gentle motion in the opening or closing direction, or both directions.
MACZ 2 00019P
FIG. 1 shows a known hinge assembly 10 for an oven door. The hinge assembly comprises a claw 12 adapted to be connected to a receptacle of an oven body O. A latch 14 is pivotally connected to the claw 12 and is pivoted to a locked position as shown to capture the claw 12 to the oven body O, or a separate keeper or other structure is used to secure the claw to the oven body O. An outer channel 20 is pivotally connected to the claw 12 by a first rivet or other fastener 22. The first fastener 22 engages the claw 12 and a first end 20a of the outer channel 20. The outer channel 20 is secured to an oven door D. As such, the channel 20 and oven door D are pivotally movable relative to the claw and the oven body O on an arc A between a first position (FIG. 1) and a second position (FIG. 3). Those of ordinary skill in the art will recognize that when the door D is in the first position, it closes a cooking chamber defined by the oven body O, and that when the door D is in the second position, it opens the cooking chamber to allow access thereto. Typically, first and second spaced-apart hinge assemblies 10 are connected to the oven body O and door D adjacent opposite lateral sides of the cooking chamber as is well-known in the art.
FIG. 2 shows the outer channel 20 in broken lines only, to reveal that the hinge assembly 10 further comprises an inner channel 30 that is nested within the outer channel 20. A first end 30a of the inner channel is pivotally connected to the claw using a second rivet 32 or other fastener that is offset from the first fastener 22 used for connecting the outer channel 20 to the claw 12. The inner channel 30 is engaged with the outer channel 20 in a manner that ensures that pivoting movement of the outer channel 20 about the first fastener 22 will cause that inner channel 30 to move with the outer channel 20 so that the inner channel 30 pivots about the second fastener 32. As shown in FIG. 3, where the inner channel 30 is shown in broken lines, when the outer channel 20 is pivoted relative to the claw 12 about the first fastener 22 and the inner channel 30 moves therewith and pivots relative to the claw 12 about the second fastener 32, the offset between the first and second fasteners 22,32 causes the inner channel 30 to slide within the outer channel 20 toward the first end 20a of the outer channel 20 (the first end 30a of the inner channel 30 also moves toward the rear wall 24 of the outer channel).
A compression spring assembly 40 is connected to the opposite, second end 20b of the outer channel 20. The compression spring assembly 40 includes a compression coil spring 42 and a spring rod 44. A first end 42a of the spring 42 is abutted directly or indirectly (through a washer or the like) with the second end 20b of the outer channel 20. ...